For each network you create, the Network node (or Controller node, if combined) will have a unique network namespace (netns) created by the DHCP and Metadata agents. The netns hosts an interface and IP addresses for dnsmasq and the neutron-ns-metadata-proxy. You can view the namespaces with the `ip netns list` command, and can interact with the namespaces with the `ip netns exec namespace command` command.

Every l2-agent/private network has an associated dhcp namespace and

Every l3-agent/router has an associated router namespace.

Network namespace starts with dhcp- followed by the ID of the network.

Router namespace starts with qrouter- followed by the ID of the router.